49240812161 has 2 divisors, whose sum is σ = 49240812162. Its totient is φ = 49240812160.

The previous prime is 49240812119. The next prime is 49240812193. The reversal of 49240812161 is 16121804294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35188132225 + 14052679936 = 187585^2 + 118544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49240812161 is a prime.

It is not a weakly prime, because it can be changed into another prime (49240811161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24620406080 + 24620406081.

It is an arithmetic number, because the mean of its divisors is an integer number (24620406081).

Almost surely, 2^49240812161 is an apocalyptic number.

It is an amenable number.

49240812161 is a deficient number, since it is larger than the sum of its proper divisors (1).

49240812161 is an equidigital number, since it uses as much as digits as its factorization.

49240812161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 49240812161 in words is "forty-nine billion, two hundred forty million, eight hundred twelve thousand, one hundred sixty-one".